Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (04): 117-123.doi: 10.13475/j.fzxb.20210202407

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Fabrication and interfacial evaporation properties of reduced graphene oxide/viscose multi-layer composite

XIE Mengyu1, HU Xiaolin1, LI Xing2, QU Jian'gang1,2()   

  1. 1. School of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China
    2. Erdos Cashmere Products Co., Ltd., Erdos, Inner Mongolia 017000, China
  • Received:2021-02-06 Revised:2021-09-13 Online:2022-04-15 Published:2022-04-20
  • Contact: QU Jian'gang E-mail:qujiangang@ntu.edu.cn

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Abstract:

In order to prepare interfacial evaporator with portability, reusability and scalable manufacturability, reduced graphene oxide (RGO)/viscose multi-layer composite was fabricated, where the RGO/viscose fabric acts as solar absorber, cotton yarn and cotton fabric are used as water supply channel, and polypropylene fabric functions as thermal heat material. The structure, hydrophilic properties and optical properties of the RGO/viscose fabric were analyzed, and the evaporation properties, cyclic stability and application performance of the RGO/viscose multi-layer composite were studied. The results show that RGO is cross-linked with viscose fibers. The water droplets completely permeate into the RGO/viscose fabric in 2.02 s. The absorbance of RGO/viscose fabric is about 90% in the ultraviolet-visible near infrared region. When the thickness of insulation layer is 1.35 cm, the evaporation rate of the RGO/viscose multi-layer composite is the highest under 1.0 kW/m2 solar irradiation, which is 3.6 times as high as that of pure water. Furthermore, the RGO/viscose multi-layer composite has good cyclic stability as the evaporation rate remains constant after recycling 10 times, showing excellent potential application prospect for dye wastewater treatment.

Key words: reduced graphene oxide, viscose, photothermal conversion, interfacial evaporation, dye wastewater treatment

CLC Number: 

  • TB34

Fig.1

Schematic diagram of interfacial evaporation of RGO/viscose multi-layer composite"

Fig.2

Schematic diagram of collecting device"

Fig.3

SEM images of different fabrics. (a) Viscose fabric; (b) GO/viscose fabric; (c) RGO/viscose fabric"

Fig.4

FT-IR spectra of viscose fabric, GO/viscose fabric and RGO/viscose fabric"

Fig.5

XPS spectra of GO/viscose fabric and RGO/viscose fabric"

Tab.1

Peak areas in C1s spectra of GO/viscose fabric and RGO/viscose fabric"

样品名称 化学键的相对面积/%
C—C C—O C=O
GO/粘胶织物 56.4 40.0 3.6
RGO/粘胶织物 59.3 30.4 10.3

Fig.6

Water contact angles of RGO/viscose fabric at different time"

Fig.7

Optical properties of viscose fabric, GO/viscose fabric and RGO/viscose fabric"

Fig.8

Influence of thickness of insulation material on evaporation properties. (a)Surface temperature of evaporation system; (b) Mass change of evaporation system"

Fig.9

Effect of light intensity on evaporation properties of RGO/viscose multi-layer composite"

Fig.10

Evaporation rates of 10 cycles of RGO/viscose multi-layer composite"

Fig.11

UV-Vis spectra of different dye solutions and purified water. (a) Methylene blue solution; (b) Methyl orange solution"

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